Lead Full Stack .NET . React Native developer

Cognizant; Seattle (WA); Hybrid; USD 100,000 - 130,000; Full time

Benefits offered by this job

Medical Insurance

Paid time off

401(k) plan

Disability insurance

Parental leave

Employee stock purchase plan

Job summary

Cognizant is seeking a Lead Full Stack .NET and React Native developer to design, develop, and support scalable mobile and web applications. You will collaborate with architects, product owners, and cross‑functional teams to deliver high‑quality digital solutions.

The role emphasizes leadership, hands‑on development across front‑ and back‑end stacks, and mentoring to raise engineering quality and practices within the team.

Qualifications

• 8+ years of software development experience in full‑stack
• Strong hands-on experience with React Native mobile development
• Extensive experience building and supporting .NET APIs and backend services
• Proficiency with TypeScript, Redux, GraphQL, and REST APIs
• Experience implementing observability using OpenTelemetry
• Strong troubleshooting in distributed environments
• Experience in Agile teams and mentoring

Responsibilities

• Design, develop, and maintain full‑stack apps using React Native, .NET APIs, TypeScript, Redux, GraphQL, and REST APIs
• Build scalable, secure mobile and backend solutions meeting requirements
• Troubleshoot and debug across multiple environments
• Collaborate with architects and technical leaders to design enterprise‑grade software
• Provide technical guidance, code reviews, and mentorship to teams

Skills

React Native

TypeScript

Redux

GraphQL

REST APIs

OpenTelemetry

Agile development

Mentoring

Job description

Lead Full Stack .NET . React Native developer

About the role

As a Lead Full Stack .NET . React Native developer, you will make an impact by designing, developing, and supporting scalable mobile and web applications across both front-end and back-end technologies. You will be a valued member of the engineering team and work collaboratively with architects, technical leaders, product owners, and cross-functional development teams to deliver high-quality digital solutions.

In this role, you will:

• Design, develop, and maintain full-stack applications using React Native, .NET APIs, TypeScript, Redux, GraphQL, and REST APIs.
• Build scalable, secure, and maintainable mobile and backend solutions that meet business and technical requirements.
• Troubleshoot, debug, and resolve application issues across multiple environments.
• Collaborate with architects and technical leadership to design and implement enterprise-grade software solutions.
• Provide technical guidance, code reviews, and mentorship to development teams while promoting engineering best practices and quality standards.

Work model

We believe hybrid work is the way forward as we strive to provide flexibility wherever possible. Based on this role's business requirements, this is a hybrid position 3 days in the office and 2 Remote requiring attendance at a client office in Seattle, WA based on project needs. Regardless of your working arrangement, we are here to support a healthy work-life balance through our various wellbeing programs. The working arrangements for this role are accurate as of the date of posting. This may change based on the project you're engaged in, as well as business and client requirements. Rest assured; we will always be clear about role expectations.

What you need to have to be considered

• 8+ years of software development experience with full-stack application development.
• Strong hands-on experience developing mobile applications using React Native.
• Extensive experience building and supporting.NET APIs and backend services.
• Proficiency with TypeScript, Redux, GraphQL, and REST APIs.
• Experience implementing observability and monitoring solutions using OpenTelemetry.
• Strong troubleshooting and debugging skills in distributed application environments.
• Experience collaborating with cross-functional teams in an Agile development environment.
• Excellent communication and technical mentoring skills.

These will help you stand out

• Experience designing and implementing cloud-native applications.
• Knowledge of CI/CD pipelines and DevOps practices.
• Experience with microservices-based architectures.
• Familiarity with performance optimization and application monitoring best practices.
• Experience leading technical discussions and influencing engineering decisions.

Benefits:

Cognizant offers the following benefits for this position, subject to applicable eligibility requirements:

• Medical/Dental/Vision/Life Insurance.
• Paid holidays plus Paid Time Off.
• 401(k) plan and contributions.
• Long-term/Short-term Disability.
• Paid Parental Leave.
• Employee Stock Purchase Plan.

**Please note: A few of our roles may require in-person interviews at Cognizant offices or client locations, depending on project or client needs.**

Compensation

The annual salary for this position ranges from $100,000 to $130,000, depending on experience and qualifications. This role is also eligible for Cognizant’s discretionary annual incentive program, subject to performance and applicable plan terms.

Disclaimer:The salary, other compensation, and benefits information is accurate as of the date of this posting. Cognizant reserves the right to modify this information at any time, subject to applicable law

We're excited to meet people who share our mission and can make an impact in a variety of ways. Don't hesitate to apply, even if you only meet the minimum requirements listed. Think about your transferable experiences and unique skills that make you stand out as someone who can bring new and exciting things to this role